Sorry, but I have no idea when these pictures were taken. But I think that some of them are from the early years of her marriage (1981-82-83 maybe) and some of them are when she was a teenager (probably from 15 to 17 years old).

I agree with Insy. I don't know the year when Diana was young but she was definitely teenager at the time. And some pictures were early 80's as her hair cut short in middle 1990 so all these pictures were taken before 1990s.